Service and maintenance
7.2 Loading new firmware
CP 343-1 Lean
48 Manual, 10/2012, C79000−G8976−C198−07
● Reset to factory settings
– In STEP 7 V5.5 with the menu command "PLC" > "Edit Ethernet Node..." > Select CP
> "OK" > "Reset to Factory Defaults"
– In STEP 7 special diagnostics with the "Operating Mode" > "Reset to Factory Settings"
menu command
– In STEP 7 Professional V11 with "Online > Online & Diagnostics > Functions > Reset
to Factory Settings"
Behavior after a memory reset
The CPU in the S7 station does not recognize that the CP memory was reset. The CP
therefore changes to the "Stopped (STOP) with error" state (see LEDs (Page 25)).
The co
nfiguration data must then be reloaded. The download of the configuration data can
be initiated by cycling the power supply (OFF → ON).
7.2 Loading new firmware
Options for a firmware update
The following alternative methods can be used to download new firmware to a SIMATIC NET
CP:
● Using the firmware loader supplied with STEP 7
Requirement for downloading:
– To download firmware, you require an Industrial Ethernet CP module in the PG/PC
(for example, CP 1613) or a normal Ethernet module with the "Softnet" software
package.
– The S7ONLINE interface must be set to the "ISO - Industrial Ethernet" protocol. It is
not possible to download using TCP/IP (and therefore not to other networks).
● Via the update center in the Web diagnostics of the CP
With this method, the CP remains in RUN mode.
You can reach the update center using Web diagnostics.
Requirement: The option "Firmware download via Web" is selected in the configuration.
Both options for loading the firmware are described in the manual Part A, see /1/ (Page 60).
LED displays when loading a firmware file
The LED combinations when loading a firmware file using the STEP 7 firmware loader can
be found in the section LEDs (Page 25).
Whe
n loading a firmware file using the update center in Web diagnostics, the LEDs of the
CP remain unchanged.
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